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2 Commits

Author SHA1 Message Date
Chad Rosier
c6b1a7e577 [IndVarSimplify] Partially revert r217953 to see if this fixes the bots. 
Specifically, disable widening of unsigned compare instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217962 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-09-17 16:35:09 +00:00
Chad Rosier
c5f6b53403 [IndVarSimplify] Widen loop compare instructions. 
This improves other optimizations such as LSR.  A sext may be added to the
compare's other operand, but this can often be hoisted outside of the loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217953 91177308-0d34-0410-b5e6-96231b3b80d8
 2014-09-17 14:10:33 +00:00